DOCSLIB.ORG

Report of the Mcs Working Parties to Lundy 1997 - 2001

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Report of the Mcs Working Parties to Lundy 1997 - 2001 REPORT OF THE MCS WORKING PARTIES TO LUNDY 1997 - 2001 ROBERT IRVING & KATE NORTHEN (eds.) JULY 2004 REPORT OF THE MARINE CONSERVATION SOCIETY WORKING PARTIES TO LUNDY, 1997 - 2001 ROBERT IRVING & KATE NORTHEN (eds.) JULY 2004 Combe Lodge Marine Conservation Society Bampton Unit 3, Wolf Business Park Devon Alton Road EX16 9LB Ross-on-Wye HR9 5BN Tel. 01398 332267 Tel. 01989 566017 [email protected] [email protected] Reference: Irving, R.A. & Northen, K.O. (eds.) 2004. Report of the Marine Conservation Society Working Parties to Lundy, 1997-2001. Unpublished report to English Nature (Devon Team). SUMMARY A total of 50 individual volunteer divers, all members of the Marine Conservation Society (MCS), took part in 5-day long conservation working parties within the Lundy Marine Nature Reserve annually between 1995 and 2001. Over this period of time, a total of 24 projects were undertaken, some being one-off tasks whilst others continued on a year-on-year basis. Eighteen of these projects, undertaken between 1997 and 2001, are described in this report (the remainder being described elsewhere in other reports). The projects were decided upon in consultation with English Nature (Exeter & Peterborough offices), the country agency responsible for the management of the MNR, and the MNR Warden, Liza Cole. The volunteer divers were of mixed diving experience (though all were of at least BSAC sports diver grade or equivalent qualifications) and of mixed marine biological expertise. The trips were organised by Robert Irving, a marine environmental consultant and Secretary to the Lundy Marine Nature Reserve Advisory Group, as part-working party and part-holiday. Volunteers were given the opportunity to learn sublittoral survey techniques and to undertake conservation-orientated projects whilst making a positive contribution towards the management of the MNR. Those with underwater cameras also had the opportunity to take photographs, some of which are featured in this report. In most years the groups operated from a liveaboard vessel (being the most cost-effective and time-efficient means of running such a diving trip at Lundy), though having arrived at the island, use was made of the Warden’s RIB for daily diving operations. Sites visited were mostly off the island’s east coast (the sheltered side of the island), though visits were also made to the west coast if weather conditions allowed. The projects undertaken by the groups included: • Assessing the size structure of sea fans Eunicella verrucosa • Assessing the overall condition of sea fans Eunicella verrucosa • Checking for the presence of Tritonia nilsodhneri and Amphianthus dohrnii on sea fans. • Assessing the distribution of populations of the sunset cup coral Leptopsammia pruvoti off the island’s east coast. • Searching for Leptopsammia pruvoti populations off the island’s west coast. • Assessing the ‘colonisation’ of Caryophyllia and Leptopsammia cup corals by barnacles and phoronid worms. • Re-photographing circalittoral communities at the Knoll Pins ‘cave’. • Assessing the density of ‘delicate’ species in near-shore areas off the east coast. • Annual deployment & recovery of automatic data loggers on the wreck of the MV Robert. • Checking the density of scallops on muddy gravel off the east coast. • Noting the maximum depth of kelp and red algae at various sites. • Describing the seabed topography and communities to the north of Gannets’ Rock. • Searches for the red band fish Cepola rubescens and the mantis shrimp Rissoides desmaresti. • Undertaking Seasearch recording of seabed habitats from various sites. • Assessing the density of daisy anemones Cereus pedunculatus off Brazen Ward • Searching for various ‘rare’ warm water species (including seahorses). • Assessing the colonisation of the new jetty piles. • Assessing the extent of spread of Sargassum muticum in the vicinity of the Landing Bay. Summary reports of the work undertaken each summer at Lundy have been published in the Annual Reports of the Lundy Field Society. CONTENTS 1. INTRODUCTION............................................................................................... 1 2. PLANNING........................................................................................................ 2 2.1 Personnel ................................................................................................... 2 2.2 Logistics..................................................................................................... 2 2.2.1 Summaries of the expeditions, 1997 - 2001........................................... 4 3. PROJECTS....................................................................................................... 6 3.1 Studies of the pink sea fan Eunicella verrucosa .................................... 7 3.1.1 Assessing the size structure of sea fans Eunicella verrucosa............... 9 3.1.2 Assessing the condition of sea fans Eunicella verrucosa.................... 12 3.1.3 Checking for the presence of the nudibranch Tritonia nilsodhneri and of the sea fan anemone Amphianthus dohrnii on sea fans................. 19 3.2 Studies of the sunset cup coral Leptopsammia pruvoti ...................... 23 3.2.1 The distribution of populations of Leptopsammia pruvoti off Lundy’s east coast ........................................................................................... 25 3.2.2 Assessing the ‘colonisation’ of Caryophyllia smithii and Leptopsammia pruvoti cup corals by barnacles and phoronid worms 29 3.2.3 Searches for Leptopsammia pruvoti off the west coast, between the Battery and Dead Cow Point .............................................................. 35 3.2.4 Re-photographing circalittoral communities at the Knoll Pins ‘cave’ ... 37 3.3 Other projects .......................................................................................... 40 3.3.1 Assessing the density of ‘delicate’ species (Pentapora, Eunicella and various erect sponge species) in near-shore areas off the east coast 40 3.3.2 Deployment and annual recovery of data loggers on the wreck of the MV Robert and in the Landing Bay..................................................... 46 3.3.3 Checking the density of scallops on muddy gravel off the east coast . 51 3.3.4 Checking the maximum depth of kelp Laminaria hyperborea and red algae at various sites.......................................................................... 54 3.3.5 Describing the sea bed topography and benthic communities to the north of Gannets’ Rock....................................................................... 57 3.3.6 Searches for the red band fish Cepola rubescens, and the mantis shrimp Rissoides desmaresti.............................................................. 70 3.3.7 SEASEARCH recording of seabed habitats from various sites........... 73 3.3.8 Studies on a population of daisy anemones Cereus pedunculatus off Brazen Ward....................................................................................... 75 3.3.9 Looking out for ‘warm water’ species .................................................. 78 3.3.10 Assessing the colonisation of the new jetty piles .............................. 82 Report of the MCS Working Parties to Lundy, 1997-2001 3.3.11 Checking the extent of spread of the non-native seaweed Sargassum muticum in the Landing Bay............................................. 87 4 GENERAL CONCLUSIONS............................................................................. 89 4.1 Assessing the projects undertaken ....................................................... 89 4.2 The planning and logistics of each expedition ..................................... 90 4.3 The continuation of the involvement of volunteer divers at Lundy .... 91 5 ACKNOWLEDGEMENTS ................................................................................ 92 6. REFERENCES................................................................................................ 93 APPENDICES APPENDIX I Volunteer divers taking part in the MCS Lundy expeditions APPENDIX II Projects 1995 - 2001 APPENDIX III Recording Forms (1) Sea fan / sea slug recording form (2) Leptopsammia pruvoti / Boscia / Phoronis recording form (3) Maximum depth of algae recording form (4) Colonisation of jetty piles recording form MAP OF LUNDY Report of the MCS Working Parties to Lundy, 1997-2001 1. INTRODUCTION The waters around the island of Lundy in the Bristol Channel still remain England’s only statutory Marine Nature Reserve (MNR). The statutory Reserve came into existence in November 1986, though there had been a voluntary marine nature reserve around the island since 1973 (also being the first such reserve in the country). The MNR has been managed since 1991 (post-Nature Conservancy Council) by English Nature, in co-operation with the Devon Sea Fisheries Committee (responsible for making bylaws relating to fishing and to fisheries throughout Devon waters) and the Landmark Trust (which leases the island from the National Trust). Further information about the history of Lundy’s marine nature reserves is provided by Irving & Gilliland (1997). For the past ten years, the Marine Conservation Society (MCS) has organised a programme of summer dives for their members throughout the country. Most of these are simply for recreational purposes and are either for one day or two days over a weekend. They provide an opportunity for like-minded people to meet up and share their enthusiasm for marine life in interesting locations. Since 1995, groups of MCS volunteers have had the
Load more

Recommended publications
  • Sexual Reproduction of the Solitary Sunset Cup Coral Leptopsammia Pruvoti (Scleractinia: Dendrophylliidae) in the Mediterranean
    Marine Biology (2005) 147: 485–495 DOI 10.1007/s00227-005-1567-z RESEARCH ARTICLE S. Goffredo Æ J. Radetic´Æ V. Airi Æ F. Zaccanti Sexual reproduction of the solitary sunset cup coral Leptopsammia pruvoti (Scleractinia: Dendrophylliidae) in the Mediterranean. 1. Morphological aspects of gametogenesis and ontogenesis Received: 16 July 2004 / Accepted: 18 December 2004 / Published online: 3 March 2005 Ó Springer-Verlag 2005 Abstract Information on the reproduction in scleractin- came indented, assuming a sickle or dome shape. We can ian solitary corals and in those living in temperate zones hypothesize that the nucleus’ migration and change of is notably scant. Leptopsammia pruvoti is a solitary coral shape may have to do with facilitating fertilization and living in the Mediterranean Sea and along Atlantic determining the future embryonic axis. During oogene- coasts from Portugal to southern England. This coral sis, oocyte diameter increased from a minimum of 20 lm lives in shaded habitats, from the surface to 70 m in during the immature stage to a maximum of 680 lm depth, reaching population densities of >17,000 indi- when mature. Embryogenesis took place in the coelen- viduals mÀ2. In this paper, we discuss the morphological teron. We did not see any evidence that even hinted at aspects of sexual reproduction in this species. In a sep- the formation of a blastocoel; embryonic development arate paper, we report the quantitative data on the an- proceeded via stereoblastulae with superficial cleavage. nual reproductive cycle and make an interspecific Gastrulation took place by delamination. Early and late comparison of reproductive traits among Dend- embryos had diameters of 204–724 lm and 290–736 lm, rophylliidae aimed at defining different reproductive respectively.
    [Show full text]
  • Cirripedia of Madeira
    View metadata, citation and similar papers at core.ac.uk brought to you by CORE provided by Universidade do Algarve Helgol Mar Res (2006) 60: 207–212 DOI 10.1007/s10152-006-0036-5 ORIGINAL ARTICLE Peter Wirtz Æ Ricardo Arau´jo Æ Alan J. Southward Cirripedia of Madeira Received: 13 September 2005 / Revised: 12 January 2006 / Accepted: 13 January 2006 / Published online: 3 February 2006 Ó Springer-Verlag and AWI 2006 Abstract We give a list of Cirripedia from Madeira phers. The marine invertebrates have been less studied Island and nearby deep water, based on specimens in and there has been no compilation of cirripede records the collection of the Museu Municipal do Funchal for Madeira, comparable to those for the Azores (Histo´ria Natural) (MMF), records mentioned in the archipelago (Young 1998a; Southward 1999). We here literature, and recent collections. Tesseropora atlantica summarize records from Madeira and nearby deep water Newman and Ross, 1976 is recorded from Madeira for and discuss their biogeographical implications. the first time. The Megabalanus of Madeira is M. az- oricus. There are 20 genera containing 27 species, of which 22 occur in depths less than 200 m. Of these Methods shallow water species, eight are wide-ranging oceanic forms that attach to other organisms or to floating The records are based on (1) the work of R.T. Lowe, objects, leaving just 13 truly benthic shallow water who sent specimens to Charles Darwin; (2) material in barnacles. This low diversity is probably a consequence the Museu Municipal do Funchal (Histo´ria Natural) of the distance from the continental coasts and the (MMF); (3) casual collecting carried out by residents or small area of the available habitat.
    [Show full text]
  • Pink Sea Fan Survey 2001-2002
    PINK SEA FAN SURVEY 2001-2002 A report by Chris Wood for the Marine Conservation Society CONTENTS 1. Executive Summary and Acknowledgements 2 2. Introduction and Methods 5 3. General Findings 7 a. Distribution b. Depth range c. Habitat d. Abundance e. Size f. Condition g. Colour h. Associated species 4. Human Impacts and current protection for sea fans 17 5. Findings by Area 21 a. Anglesey and Pembrokeshire b. Lundy c. North Cornwall d. Lands End e. The Manacles f. Plymouth g. Lyme Bay h. Purbeck i. Channel Islands 6. Conclusions and recommendations 35 Bibliography 39 Appendices 41 All photographs are by the author except where stated. Marine Conservation Society, 9, Gloucester Road, Ross-on-Wye, Herefordshire, HR9 5BU. United Kingdom www.mcsuk.org The Marine Conservation Society is a registered charity No 1004005 MCS Pink Sea Fan Survey 2001-2002 1 Please Note This report has been reduced in content to make it suitable to download from the internet. The following elements contained in the full report have been omitted • Front and back covers • 3 pages of colour photographs • Appendix 1 – table of raw data • Appendix 2 – sea fan survey forms and guidance notes These can be provided on request. Contact the author at [email protected] or telephone 07776 142096 Reference: Wood, C. (2003). Pink sea fan survey 2001/2. A report for the Marine Conservation Society. © Marine Conservation Society 2003 Copies of this report can be obtained from the Marine Conservation Society. MCS Pink Sea Fan Survey 2001-2002 2 1.0 Executive Summary and Acknowledgements Executive Summary 1.01 This report presents the findings of a two-year study of the Pink sea fan, Eunicella verrucosa, and associated species, based on records of sea fans made by volunteer divers.
    [Show full text]
  • Corales De Las Islas Canarias
    ETSI MINAS (UNIVERSIDAD POLITÉCNICA DE MADRID) CORALES DE LAS ISLAS CANARIAS FICHERO Ignacio Alonso Provencio Lorena Blanco Muñoz Marzo de 2013, Prácticas en los laboratorio del IGME 1 CONOCIMIENTOS PREVIOS SOBRE LOS CORALES: ANATOMÍA Los corales marinos son animales coloniales, salvo excepciones, pertenecientes al filo Cnidaria, clase Anthozoa. Las colonias están formadas por hasta miles de individuos zooides y pueden alcanzar grandes dimensiones. Las distintas especies de invertebrados con los que vamos a tratar perteneces al grupo de los antozoos, es decir, cnidarios que sólo tienen una fase pólipo (carecen de fase medusa) y poseen una cavidad gástrica dividida en compartimentos. El término "coral marino" suele usarse para designar a los antozoos; los corales se dividen en blandos y duros (en función del exoesqueleto que presenten), según tengan esqueleto o no: - DUROS: antozoos que generan un esqueleto calcáreo duro, especialmente si construyen colonias ramificadas. También son comunes las especies que forman colonias compactas incluso con un esqueleto córneo y flexible. - BLANDOS: son antozoos pertenecientes a las especies del orden Alcyonacea, que no generan esqueleto y utilizan el calcio en forma de espículas (unidades esqueléticas calcáreas o silíceas que forman parte del esqueleto de los poríferos) repartidas por su tejido carnoso, para proporcionarles mayor rigidez y consistencia. La perspectiva embriológica de los cnidarios es uno de los aspectos más importantes; normalmente el zigoto da lugar a una blástula con un espacio interior o bien, da lugar a una blástula maciza. Los antozoos, poseen tres capas de tejidos plenamente desarrollados: - ECTODERMO: capa celular primaria más externa del embrión. Da lugar al sistema nervioso, órganos especiales de los sentidos, la epidermis y derivados epidérmicos.
    [Show full text]
  • (Adriatic Sea, Croatia). 1
    NAT. CROAT. VOL. 11 No 3 265¿292 ZAGREB September 30, 2002 ISSN 1330-0520 original scientific paper / izvorni znanstveni rad UDK 591.9:593.6(497.5/(262.3)(1–13) MARINE FAUNA OF THE MLJET NATIONAL PARK (ADRIATIC SEA, CROATIA). 1. ANTHOZOA PETAR KRU@I] Faculty of Science, Department of Zoology, Rooseveltov trg 6, 10000 Zagreb, Croatia ([email protected]) Thais – Society for Exploration and Conservation of Nature, Primorska 23, 10000 Zagreb, Croatia Kru`i}, P.: Marine fauna of the Mljet National Park (Adriatic Sea, Croatia). 1. Anthozoa. Nat. Croat., Vol. 11, No. 3., 265–292, 2002, Zagreb. Fifty-two anthozoan species were recorded and collected in the area of Mljet National Park dur- ing surveys from 1995 to 1998. General and ecological data are presented for each species, as well as distribution and local abundance. Recorded species account for about 60% of anthozoans known in the Adriatic Sea, and for about 45% of anthozoans known in the Mediterranean Sea. Eight of these species were not recorded previously in the Adriatic Sea. Eleven species are considered to be Mediterranean endemics. The heterogeneity of substrates and benthic communities is considerable in the Mljet National Park, with anthozoans present on most different kinds of substrates and in a wide range of benthic communities. Remarkably, the colonial coral Cladocora caespitosa builds a large »reef-like« structure in the Veliko Jezero, in the area characterized by strong bottom hydro- dynamism. Key words: marine fauna, Anthozoa, Mljet, Adriatic Sea Kru`i}, P.: Morska fauna Nacionalnog parka Mljet (Jadransko more, Hrvatska). 1.
    [Show full text]
  • Atlantia, a New Genus of Dendrophylliidae (Cnidaria, Anthozoa, Scleractinia) from the Eastern Atlantic
    Atlantia, a new genus of Dendrophylliidae (Cnidaria, Anthozoa, Scleractinia) from the eastern Atlantic Kátia C.C. Capel1,2,*, Cataixa López3,4,*, Irene Moltó-Martín3,4, Carla Zilberberg2,5, Joel C. Creed2,6, Ingrid S.S. Knapp7, Mariano Hernández3,4, Zac H. Forsman7, Robert J. Toonen7 and Marcelo V. Kitahara1,8 1 Centro de Biologia Marinha, Universidade de São Paulo, São Sebastião, São Paulo, Brazil 2 Coral-Sol Research, Technological Development and Innovation Network, Rio de Janeiro, Brazil 3 Departamento de Biología Animal, Edafología y Geología. Facultad de Ciencias, Universidad de La Laguna, San Cristóbal de La Laguna, Canary Islands, Spain 4 Departamento de Bioquímica, Microbiología, Biología Celular y Genética, Facultad de Ciencias, Instituto Universitario de Enfermedades Tropicales y Salud Pública de Canarias, Universidad de La Laguna, San Cristóbal de La Laguna, Canary Islands, Spain 5 Instituto de Biodiversidade e Sustentabilidade, Universidade Federal do Rio de Janeiro, Macaé, Rio de Janeiro, Brazil 6 Departamento de Ecologia, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, Brazil 7 School of Ocean & Earth Science & Technology, Hawai'i Institute of Marine Biology, University of Hawai'i at Manoa,¯ Kaneohe, Hawai'i, United States of America 8 Departamento de Ciências do Mar, Universidade Federal de São Paulo, Santos, São Paulo, Brazil * These authors contributed equally to this work. ABSTRACT Atlantia is described as a new genus pertaining to the family Dendrophylliidae (Anthozoa, Scleractinia) based on specimens from Cape Verde, eastern Atlantic. This taxon was first recognized as Enallopsammia micranthus and later described as a new species, Tubastraea caboverdiana, which then changed the status of the genus Tubastraea as native to the Atlantic Ocean.
    [Show full text]
  • Inferred Calcification Rate of a Mediterranean Azooxanthellate
    Caroselli et al. Frontiers in Zoology 2012, 9:32 http://www.frontiersinzoology.com/content/9/1/32 RESEARCH Open Access Inferred calcification rate of a Mediterranean azooxanthellate coral is uncoupled with sea surface temperature along an 8° latitudinal gradient Erik Caroselli1, Guido Mattioli2, Oren Levy3, Giuseppe Falini4, Zvy Dubinsky3 and Stefano Goffredo1* Abstract Introduction: Correlations between sea surface temperature (SST) and growth parameters of the solitary azooxanthellate Dendrophylliid Leptopsammia pruvoti were assessed along an 8° latitudinal gradient on western Italian coasts (Mediterranean Sea), to check for possible negative effects of increasing temperature as the ones reported for a closely related, sympatric but zooxanthellate species. Results: Calcification rate was correlated with skeletal density but not with linear extension rate, indicating that calcium carbonate deposition was preferentially allocated to keep a constant skeletal density. Unlike most studies on both temperate and tropical zooxanthellate corals, where calcification rate is strongly related to environmental parameters such as SST, in the present study calcification rate was not correlated with SST. Conclusions: The lower sensitivity of L. pruvoti to SST with respect to other sympatric zooxanthellate corals, such as Balanophyllia europaea, may rely on the absence of a temperature induced inhibition of photosynthesis, and thus the absence of an inhibition of the calcification process. This study is the first field investigation of the relationship between SST and the three growth parameters of an azooxanthellate coral. Increasing research effort on determining the effects of temperature on biological traits of the poorly studied azooxanthellate scleractinians may help to predict the possible species assemblage shifts that are likely to occur in the immediate future as a consequence of global climatic change.
    [Show full text]
  • Atlas De La Faune Marine Invertébrée Du Golfe Normano-Breton. Volume
    350 0 010 340 020 030 330 Atlas de la faune 040 320 marine invertébrée du golfe Normano-Breton 050 030 310 330 Volume 7 060 300 060 070 290 300 080 280 090 090 270 270 260 100 250 120 110 240 240 120 150 230 210 130 180 220 Bibliographie, glossaire & index 140 210 150 200 160 190 180 170 Collection Philippe Dautzenberg Philippe Dautzenberg (1849- 1935) est un conchyliologiste belge qui a constitué une collection de 4,5 millions de spécimens de mollusques à coquille de plusieurs régions du monde. Cette collection est conservée au Muséum des sciences naturelles à Bruxelles. Le petit meuble à tiroirs illustré ici est une modeste partie de cette très vaste collection ; il appartient au Muséum national d’Histoire naturelle et est conservé à la Station marine de Dinard. Il regroupe des bivalves et gastéropodes du golfe Normano-Breton essentiellement prélevés au début du XXe siècle et soigneusement référencés. Atlas de la faune marine invertébrée du golfe Normano-Breton Volume 7 Bibliographie, Glossaire & Index Patrick Le Mao, Laurent Godet, Jérôme Fournier, Nicolas Desroy, Franck Gentil, Éric Thiébaut Cartographie : Laurent Pourinet Avec la contribution de : Louis Cabioch, Christian Retière, Paul Chambers © Éditions de la Station biologique de Roscoff ISBN : 9782951802995 Mise en page : Nicole Guyard Dépôt légal : 4ème trimestre 2019 Achevé d’imprimé sur les presses de l’Imprimerie de Bretagne 29600 Morlaix L’édition de cet ouvrage a bénéficié du soutien financier des DREAL Bretagne et Normandie Les auteurs Patrick LE MAO Chercheur à l’Ifremer
    [Show full text]
  • Cirripedia of Madeira
    Helgol Mar Res (2006) 60: 207–212 DOI 10.1007/s10152-006-0036-5 ORIGINAL ARTICLE Peter Wirtz Æ Ricardo Arau´jo Æ Alan J. Southward Cirripedia of Madeira Received: 13 September 2005 / Revised: 12 January 2006 / Accepted: 13 January 2006 / Published online: 3 February 2006 Ó Springer-Verlag and AWI 2006 Abstract We give a list of Cirripedia from Madeira phers. The marine invertebrates have been less studied Island and nearby deep water, based on specimens in and there has been no compilation of cirripede records the collection of the Museu Municipal do Funchal for Madeira, comparable to those for the Azores (Histo´ria Natural) (MMF), records mentioned in the archipelago (Young 1998a; Southward 1999). We here literature, and recent collections. Tesseropora atlantica summarize records from Madeira and nearby deep water Newman and Ross, 1976 is recorded from Madeira for and discuss their biogeographical implications. the first time. The Megabalanus of Madeira is M. az- oricus. There are 20 genera containing 27 species, of which 22 occur in depths less than 200 m. Of these Methods shallow water species, eight are wide-ranging oceanic forms that attach to other organisms or to floating The records are based on (1) the work of R.T. Lowe, objects, leaving just 13 truly benthic shallow water who sent specimens to Charles Darwin; (2) material in barnacles. This low diversity is probably a consequence the Museu Municipal do Funchal (Histo´ria Natural) of the distance from the continental coasts and the (MMF); (3) casual collecting carried out by residents or small area of the available habitat.
    [Show full text]
  • Skeletal Mechanical Properties of Mediterranean Corals Along a Wide Latitudinal Gradient
    Skeletal mechanical properties of Mediterranean corals along a wide latitudinal gradient S. Goffredo, A. Mancuso, E. Caroselli, F. Prada, Z. Dubinsky, G. Falini, O. Levy, P. Fantazzini & L. Pasquini Coral Reefs Journal of the International Society for Reef Studies ISSN 0722-4028 Volume 34 Number 1 Coral Reefs (2015) 34:121-132 DOI 10.1007/s00338-014-1222-6 1 23 Your article is protected by copyright and all rights are held exclusively by Springer- Verlag Berlin Heidelberg. This e-offprint is for personal use only and shall not be self- archived in electronic repositories. If you wish to self-archive your article, please use the accepted manuscript version for posting on your own website. You may further deposit the accepted manuscript version in any repository, provided it is only made publicly available 12 months after official publication or later and provided acknowledgement is given to the original source of publication and a link is inserted to the published article on Springer's website. The link must be accompanied by the following text: "The final publication is available at link.springer.com”. 1 23 Author's personal copy Coral Reefs (2015) 34:121–132 DOI 10.1007/s00338-014-1222-6 REPORT Skeletal mechanical properties of Mediterranean corals along a wide latitudinal gradient S. Goffredo • A. Mancuso • E. Caroselli • F. Prada • Z. Dubinsky • G. Falini • O. Levy • P. Fantazzini • L. Pasquini Received: 21 November 2013 / Accepted: 29 September 2014 / Published online: 8 October 2014 Ó Springer-Verlag Berlin Heidelberg 2014 Abstract This is the first study exploring skeletal reduced skeletal bulk density and porosity with SST mechanical properties in temperate corals.
    [Show full text]
  • CIRRIPEDIA (Aggiornamento Ottobre 2017 / Update October 2017)
    CIRRIPEDIA (aggiornamento ottobre 2017 / update October 2017) Giulio Relini DISTAV, Università di Genova, Corso Europa, 26 - 16132 Genova, Italia. [email protected] I Cirripedi sono tra i Crostacei maggiormente The cirripedes are the most highly modified of modificati e rappresentati da taxa molto differenti, the crustaceans and are represented by so different tanto che alcuni autori hanno suggerito di separare taxa that some authors have suggested separating gli Ascothoracica ed i Rhizocephala, che si sono Ascothoracica and Rhizocephala, which have adattati alla vita parassitaria, dagli altri Cirripedia. adapted to parasitic life, from other Cirripedia. Per semplicità in questa trattazione viene For the sake of simplicity this work follows the seguito lo schema di classificazione riportato classification scheme adopted by Newmann (1987; da Newmann (1987; p. 5, tab. 1) in cui la p. 5, tab. 1). The subclass Cirripedia of Maxillopoda sottoclasse Cirripedia dei Maxillopoda is divided into the following orders: Ascothoracica, viene suddivisa negli ordini Ascothoracica, Rhizocephala, Thoracica and Acrothoracica. Rhizocephala, Thoracica e Acrothoracica. At present the classification of Thoracica La classificazione dei Thoracica è ancora oggi is still based on the phylogenetic scheme basata sullo schema filogenetico proposto da suggested by Darwin (1851, 1854), obviously Darwin (1851, 1854), ovviamente ampliato e extended and modified in line with more recent modificato in relazione alle nuove conoscenze information (Pilsbry, 1907, 1916; Newmann
    [Show full text]
  • THE STATUS of the SUNSET CUP CORAL LEPTOPSAMMIA PRUVOTI at LUNDY by ROBERT A
    Journal of the Lundy Field Society, 2, 2010 THE STATUS OF THE SUNSET CUP CORAL LEPTOPSAMMIA PRUVOTI AT LUNDY by ROBERT A. IRVING1 AND KEITH HISCOCK2 1 Sea-Scope Marine Environmental Consultants, Combe Lodge, Bampton, Devon, EX16 9LB 2 Marine Biological Association of the UK, Citadel Hill, Plymouth, Devon, PL1 2PB Corresponding author, e-mail: [email protected] ABSTRACT The findings of a survey of the numbers of the nationally rare sunset cup coral Leptopsammia pruvoti at Lundy in September 2007 are presented together with more recent observations. Counts of individuals were undertaken using divers and in situ photography. An estimate is given of the overall size of the coral’s population at Lundy, its extent and its condition, and the proportion of new recruits within the population. The findings are compared with other studies undertaken at Lundy since the early 1980s. These comparisons show dramatic declines in numbers in some areas but increases in others. Keywords: Lundy, Leptopsammia pruvoti, decline, underwater photography, SAC, MNR INTRODUCTION Within British waters, the small but eye-catching sunset cup coral Leptopsammia pruvoti (Lacaze-Duthiers, 1897) (Plate 1) is a species of particular marine natural heritage importance. It is nationally rare (i.e. it occurs in eight or fewer 10 km by 10 km Ordnance Survey grid squares containing sea within the 3 mile limit of territorial seas around Great Britain), and, since 1999, it has had its own Biodiversity Species Action Plan (UK Biodiversity Action Group, 1999). Lundy is a small island, approximately 5 km long by 1 km wide, which lies at the mouth of the Bristol Channel some 18 km from the nearest point of the north-west Devon mainland.
    [Show full text]